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From ju...@apache.org
Subject svn commit: r986002 - /jackrabbit/trunk/test/performance/base/src/main/java/org/apache/jackrabbit/performance/TwoWayJoinTest.java
Date Mon, 16 Aug 2010 16:01:30 GMT
Author: jukka
Date: Mon Aug 16 16:01:29 2010
New Revision: 986002

URL: http://svn.apache.org/viewvc?rev=986002&view=rev
Log:
JCR-2715: Improved join query performance

Simple two-way join benchmark

Added:
    jackrabbit/trunk/test/performance/base/src/main/java/org/apache/jackrabbit/performance/TwoWayJoinTest.java
  (with props)

Added: jackrabbit/trunk/test/performance/base/src/main/java/org/apache/jackrabbit/performance/TwoWayJoinTest.java
URL: http://svn.apache.org/viewvc/jackrabbit/trunk/test/performance/base/src/main/java/org/apache/jackrabbit/performance/TwoWayJoinTest.java?rev=986002&view=auto
==============================================================================
--- jackrabbit/trunk/test/performance/base/src/main/java/org/apache/jackrabbit/performance/TwoWayJoinTest.java
(added)
+++ jackrabbit/trunk/test/performance/base/src/main/java/org/apache/jackrabbit/performance/TwoWayJoinTest.java
Mon Aug 16 16:01:29 2010
@@ -0,0 +1,102 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.jackrabbit.performance;
+
+import java.util.Random;
+
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+import javax.jcr.query.QueryManager;
+import javax.jcr.query.Row;
+import javax.jcr.query.RowIterator;
+
+/**
+ * Performance test for a two-way join that selects 300 pairs from
+ * a set of 90k nodes. The query is constructed in a way that should
+ * allow a smart implementation to perform the join quite efficiently.
+ */
+public class TwoWayJoinTest extends AbstractTest {
+
+    private static final int NODE_COUNT = 300;
+
+    private final Random random = new Random();
+
+    private Session session;
+
+    private Node root;
+
+    public void beforeSuite() throws RepositoryException {
+        String joins = getRepository().getDescriptor("query.joins");
+        if (joins == null || joins.equals("query.joins.none")) {
+            throw new RepositoryException(
+                    "Join queries not supported by this repository");
+        }
+
+        session = loginWriter();
+        root = session.getRootNode().addNode("testroot", "nt:unstructured");
+
+        for (int i = 0; i < NODE_COUNT; i++) {
+            Node node = root.addNode("node" + i, "nt:unstructured");
+            node.setProperty("foo", i);
+            for (int j = 0; j < NODE_COUNT; j++) {
+                Node child = node.addNode("node" + j, "nt:unstructured");
+                child.setProperty("bar", j);
+            }
+            session.save();
+        }
+    }
+
+    public void runTest() throws Exception {
+        int x = random.nextInt(NODE_COUNT);
+        String query =
+            "SELECT a.foo AS a, b.bar AS b"
+            + " FROM [nt:unstructured] AS a"
+            + " INNER JOIN [nt:unstructured] AS b ON a.foo = b.bar"
+            + " WHERE a.foo = " + x;
+
+        QueryManager manager = session.getWorkspace().getQueryManager();
+        RowIterator iterator =
+            manager.createQuery(query, "JCR-SQL2").execute().getRows();
+        int count = 0;
+        while (iterator.hasNext()) {
+            Row row = iterator.nextRow();
+            long a = row.getValue("a").getLong();
+            long b = row.getValue("b").getLong();
+            if (a != x || a != b) {
+                throw new Exception(
+                        "Invalid test result: " + x + " -> " + a + ", " + b);
+            }
+            count++;
+        }
+        if (count != NODE_COUNT) {
+            throw new Exception(
+                    "Invalid test result count: " + count + " !=" + NODE_COUNT);
+        }
+    }
+
+    public void afterSuite() throws RepositoryException {
+        for (int i = 0; i < NODE_COUNT; i++) {
+            root.getNode("node" + i).remove();
+            session.save();
+        }
+
+        root.remove();
+        session.save();
+    }
+
+}

Propchange: jackrabbit/trunk/test/performance/base/src/main/java/org/apache/jackrabbit/performance/TwoWayJoinTest.java
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    svn:eol-style = native



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